Celsius to Réaumur Converter

About Celsius (°C) and Réaumur (°Ré) Units

Celsius (°C) is the most commonly used temperature unit in the world for everyday weather, cooking, and science measurements. In this scale, 0°C is the freezing point of water and 100°C is the boiling point. For example, normal body temperature is around 37°C, room temperature is about 20–25°C, and winter temperatures in many countries can drop below 0°C. Celsius is widely used because it is easy to understand and directly linked to the properties of water. Réaumur (°Re) is a temperature scale named after the French scientist René Antoine Ferchault de Réaumur. In this scale, water freezes at 0°Re and boils at 80°Re. It was historically used in Europe for scientific work, brewing, and some industrial processes. Although it is largely replaced by Celsius today, Réaumur is still referenced in historical recipes, old scientific texts, and specialty brewing measurements.

Celsius to Réaumur Conversion Formula

To convert between Celsius (°C) and Réaumur (°Ré), use the following formulas:

1 Celsius (°C) = 0.8 Réaumur (°Ré)

1 Réaumur (°Ré) = 1.25 Celsius (°C)

Example Conversions: Celsius to Réaumur